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Finding the Fourth Proportional to 130.37, 195.37 and 115.94

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Solution

The fourth proportional to 130.37, 195.37 and 115.94 is: 173.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.37 : 195.37 = 115.94 : x
  2. Step 2: Convert to fraction form
    130.37/195.37 = 115.94/x
  3. Step 3: Cross multiply
    130.37x = 195.37 × 115.94
  4. Step 4: Simplify right side
    130.37x = 22,651.40
  5. Step 5: Solve for x
    x = 22,651.40/130.37
  6. Step 6: Final answer
    x = 173.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.